Naval Station Great Lakes confirmed on Friday morning that it has been placed on lockdown before a person was taken into custody.
In a previous social media post from the Illinois Navy base, it wrote: “RUN, HIDE, FIGHT! ALL PERSONNEL, LOCKDOWN. TAKE COVER IN NEAREST BUILDING OR STRUCTURE. AWAIT INSTRUCTION. ALL GATES ARE CLOSED.”
“We are looking for a gate runner,” the post added, suggesting that someone may have entered through the base’s gates without authorization.
A woman who claimed her husband works at the base wrote in the comments section of the social media post that it is “not a drill.”
According to the station’s report, the station was planning to host its graduation ceremony at 9 a.m. local time.
No other details were immediately available.